what is "external offsets"?

something like this I need where to find the code

From Version 2.8.0 upwards, you find this example in the "LinuxCNC Configuration Selector" under "Sample Configurations / sim / axis / external_offsets / eoffsets". Once the example config has been opened you will find the corresponding files in 'user/linuxcnc/configs/sim.axis.external_offsets'.

Ok thanks for the quick reply,
i will do a new installation to test it will solve the problem i have and i didn't know linuxcnc could do it
Greeting

Greeting to all
Could someone help me and is it possible to adjust the offset to move as the blue lines are marked when determined inside or outside.
Now I get two sides well and two opposite whether it is possible to configure this in linuxcnc
Greeting
Thank you

Hm, not sure external offsets are the most convenient solution for this. You would need to change the sign of the offset depending on the geometry of the toolpath. Wouldn't this be a simple case of radius compensation?

Thank you for your prompt response.
The problem here is that the abrasive tool wears out during polishing.
I can monitor the load of the machining motor on a digital panelmeter and correct the offset.
greeting

Ah, I see.
I think you would have to somehow do it in a similar way to how radius compensation works since you have to define which side of the contour the tool travels on. The direction of the tool vector would then be used to calculate if the external offset needs to be positive or negative. I'm somewhat sceptical that this can be done outside of the motion planner though.
But I'm out of my depth here. Maybe somebody else has an idea.

Thanks for your reply.
I thought I would solve the problem like this but I will have to look for a solution although there is probably some idea here how to do it
Greeting

Hi Andy
I honestly expected what you would say.
When I saw that this Linux can be happy, I was happy, but when I tested it, I saw how it works and what it uses to configure.
I will do this software, a company that makes software for this purpose has the ability to enter tool consumption options.
Thank you

Hello, 

what do you think? Can I use External offset during tool change, instead of using remapped M6 for driving axis while changing the tool?
Because of a known bug in linuxcnc, if remapped tool change is used, the "Run From Line" is unusable. 
Therefore i think to use external offset in HAL on a machine with a random tool changer.
The machine has a chain type pocket with 36 tools. Driven with servo Axis "A".  During tool changing must drive the A and Z axis.